El ácido oxálico es una sustancia toxica que se emplea en las lavanderias para eliminar manchas de herrumbre. su composicion es 26.7% de c, 2.2% de h y 71.1% de o, y su masa moleculas es 90u ¿cual es la formula molecular? ​

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding